[Mlir-commits] [flang] [mlir] [MLIR][OpenMP] Support basic materialization for `omp.private` ops (PR #81715)

llvmlistbot at llvm.org llvmlistbot at llvm.org
Wed Feb 14 00:20:10 PST 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-mlir-llvm

Author: Kareem Ergawy (ergawy)

<details>
<summary>Changes</summary>

Adds basic support for materializing delayed privatization. So far, the
restrictions on the implementation are:
- Only `private` clauses are supported (`firstprivate` support will be
  added in a later PR).
- Only single-block `omp.private -> alloc` regions are supported
  (multi-block ones will be supported in a later PR).

### This is a follow-up to both #<!-- -->81414 & #<!-- -->81452, only the latest commit (with the same title as the PR) is relevant to this PR.

---

Patch is 39.55 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/81715.diff


12 Files Affected:

- (modified) flang/lib/Lower/OpenMP.cpp (+2-1) 
- (modified) mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td (+10-2) 
- (modified) mlir/lib/Conversion/OpenMPToLLVM/OpenMPToLLVM.cpp (+19-13) 
- (modified) mlir/lib/Conversion/SCFToOpenMP/SCFToOpenMP.cpp (+3-1) 
- (modified) mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp (+141-48) 
- (modified) mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp (+108-6) 
- (modified) mlir/test/Conversion/OpenMPToLLVM/convert-to-llvmir.mlir (+26) 
- (modified) mlir/test/Dialect/OpenMP/invalid.mlir (+56) 
- (added) mlir/test/Dialect/OpenMP/ops-2.mlir (+74) 
- (modified) mlir/test/Dialect/OpenMP/ops.mlir (+5-5) 
- (removed) mlir/test/Dialect/OpenMP/roundtrip.mlir (-21) 
- (added) mlir/test/Target/LLVMIR/openmp-private.mlir (+91) 


``````````diff
diff --git a/flang/lib/Lower/OpenMP.cpp b/flang/lib/Lower/OpenMP.cpp
index 24f91765cb439b..74b2727961a03d 100644
--- a/flang/lib/Lower/OpenMP.cpp
+++ b/flang/lib/Lower/OpenMP.cpp
@@ -2640,7 +2640,8 @@ genParallelOp(Fortran::lower::AbstractConverter &converter,
           ? nullptr
           : mlir::ArrayAttr::get(converter.getFirOpBuilder().getContext(),
                                  reductionDeclSymbols),
-      procBindKindAttr);
+      procBindKindAttr, /*private_vars=*/llvm::SmallVector<mlir::Value>{},
+      /*privatizers=*/nullptr);
 }
 
 static mlir::omp::SectionOp
diff --git a/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td b/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
index 0adf186ae0c7e9..9ed40904f22ae2 100644
--- a/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
+++ b/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
@@ -221,6 +221,12 @@ def PrivateClauseOp : OpenMP_Op<"private", [IsolatedFromAbove]> {
       attr-dict
   }];
 
+  let builders = [
+    OpBuilder<(ins CArg<"TypeRange">:$result,
+                   CArg<"StringAttr">:$sym_name,
+                   CArg<"TypeAttr">:$type)>
+  ];
+
   let hasVerifier = 1;
 }
 
@@ -270,7 +276,9 @@ def ParallelOp : OpenMP_Op<"parallel", [
              Variadic<AnyType>:$allocators_vars,
              Variadic<OpenMP_PointerLikeType>:$reduction_vars,
              OptionalAttr<SymbolRefArrayAttr>:$reductions,
-             OptionalAttr<ProcBindKindAttr>:$proc_bind_val);
+             OptionalAttr<ProcBindKindAttr>:$proc_bind_val,
+             Variadic<AnyType>:$private_vars,
+             OptionalAttr<SymbolRefArrayAttr>:$privatizers);
 
   let regions = (region AnyRegion:$region);
 
@@ -291,7 +299,7 @@ def ParallelOp : OpenMP_Op<"parallel", [
                 $allocators_vars, type($allocators_vars)
               ) `)`
           | `proc_bind` `(` custom<ClauseAttr>($proc_bind_val) `)`
-    ) custom<ParallelRegion>($region, $reduction_vars, type($reduction_vars), $reductions) attr-dict
+    ) custom<ParallelRegion>($region, $reduction_vars, type($reduction_vars), $reductions, $private_vars, type($private_vars), $privatizers) attr-dict
   }];
   let hasVerifier = 1;
 }
diff --git a/mlir/lib/Conversion/OpenMPToLLVM/OpenMPToLLVM.cpp b/mlir/lib/Conversion/OpenMPToLLVM/OpenMPToLLVM.cpp
index 730858ffc67a71..2eba4fba105c7b 100644
--- a/mlir/lib/Conversion/OpenMPToLLVM/OpenMPToLLVM.cpp
+++ b/mlir/lib/Conversion/OpenMPToLLVM/OpenMPToLLVM.cpp
@@ -200,16 +200,20 @@ struct ReductionOpConversion : public ConvertOpToLLVMPattern<omp::ReductionOp> {
   }
 };
 
-struct ReductionDeclareOpConversion
-    : public ConvertOpToLLVMPattern<omp::ReductionDeclareOp> {
-  using ConvertOpToLLVMPattern<omp::ReductionDeclareOp>::ConvertOpToLLVMPattern;
+template <typename OpType>
+struct MultiRegionOpConversion : public ConvertOpToLLVMPattern<OpType> {
+  using ConvertOpToLLVMPattern<OpType>::ConvertOpToLLVMPattern;
   LogicalResult
-  matchAndRewrite(omp::ReductionDeclareOp curOp, OpAdaptor adaptor,
+  matchAndRewrite(OpType curOp, typename OpType::Adaptor adaptor,
                   ConversionPatternRewriter &rewriter) const override {
-    auto newOp = rewriter.create<omp::ReductionDeclareOp>(
+    auto newOp = rewriter.create<OpType>(
         curOp.getLoc(), TypeRange(), curOp.getSymNameAttr(),
         TypeAttr::get(this->getTypeConverter()->convertType(
             curOp.getTypeAttr().getValue())));
+
+    if constexpr (std::is_same_v<OpType, mlir::omp::PrivateClauseOp>)
+      newOp.setDataSharingType(curOp.getDataSharingType());
+
     for (unsigned idx = 0; idx < curOp.getNumRegions(); idx++) {
       rewriter.inlineRegionBefore(curOp.getRegion(idx), newOp.getRegion(idx),
                                   newOp.getRegion(idx).end());
@@ -231,11 +235,12 @@ void mlir::configureOpenMPToLLVMConversionLegality(
       mlir::omp::DataOp, mlir::omp::OrderedRegionOp, mlir::omp::ParallelOp,
       mlir::omp::WsLoopOp, mlir::omp::SimdLoopOp, mlir::omp::MasterOp,
       mlir::omp::SectionOp, mlir::omp::SectionsOp, mlir::omp::SingleOp,
-      mlir::omp::TaskGroupOp, mlir::omp::TaskOp>([&](Operation *op) {
-    return typeConverter.isLegal(&op->getRegion(0)) &&
-           typeConverter.isLegal(op->getOperandTypes()) &&
-           typeConverter.isLegal(op->getResultTypes());
-  });
+      mlir::omp::TaskGroupOp, mlir::omp::TaskOp, mlir::omp::PrivateClauseOp>(
+      [&](Operation *op) {
+        return typeConverter.isLegal(&op->getRegion(0)) &&
+               typeConverter.isLegal(op->getOperandTypes()) &&
+               typeConverter.isLegal(op->getResultTypes());
+      });
   target.addDynamicallyLegalOp<
       mlir::omp::AtomicReadOp, mlir::omp::AtomicWriteOp, mlir::omp::FlushOp,
       mlir::omp::ThreadprivateOp, mlir::omp::YieldOp, mlir::omp::EnterDataOp,
@@ -267,9 +272,10 @@ void mlir::populateOpenMPToLLVMConversionPatterns(LLVMTypeConverter &converter,
 
   patterns.add<
       AtomicReadOpConversion, MapInfoOpConversion, ReductionOpConversion,
-      ReductionDeclareOpConversion, RegionOpConversion<omp::CriticalOp>,
-      RegionOpConversion<omp::MasterOp>, ReductionOpConversion,
-      RegionOpConversion<omp::OrderedRegionOp>,
+      MultiRegionOpConversion<omp::ReductionDeclareOp>,
+      MultiRegionOpConversion<omp::PrivateClauseOp>,
+      RegionOpConversion<omp::CriticalOp>, RegionOpConversion<omp::MasterOp>,
+      ReductionOpConversion, RegionOpConversion<omp::OrderedRegionOp>,
       RegionOpConversion<omp::ParallelOp>, RegionOpConversion<omp::WsLoopOp>,
       RegionOpConversion<omp::SectionsOp>, RegionOpConversion<omp::SectionOp>,
       RegionOpConversion<omp::SimdLoopOp>, RegionOpConversion<omp::SingleOp>,
diff --git a/mlir/lib/Conversion/SCFToOpenMP/SCFToOpenMP.cpp b/mlir/lib/Conversion/SCFToOpenMP/SCFToOpenMP.cpp
index ea5f31ee8c6aa7..464a647564aced 100644
--- a/mlir/lib/Conversion/SCFToOpenMP/SCFToOpenMP.cpp
+++ b/mlir/lib/Conversion/SCFToOpenMP/SCFToOpenMP.cpp
@@ -450,7 +450,9 @@ struct ParallelOpLowering : public OpRewritePattern<scf::ParallelOp> {
         /* allocators_vars = */ llvm::SmallVector<Value>{},
         /* reduction_vars = */ llvm::SmallVector<Value>{},
         /* reductions = */ ArrayAttr{},
-        /* proc_bind_val = */ omp::ClauseProcBindKindAttr{});
+        /* proc_bind_val = */ omp::ClauseProcBindKindAttr{},
+        /* private_vars = */ ValueRange(),
+        /* privatizers = */ nullptr);
     {
 
       OpBuilder::InsertionGuard guard(rewriter);
diff --git a/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp b/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
index 13fc01d58eced5..3d18b9fe13e42c 100644
--- a/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
+++ b/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
@@ -430,68 +430,102 @@ static void printScheduleClause(OpAsmPrinter &p, Operation *op,
 // Parser, printer and verifier for ReductionVarList
 //===----------------------------------------------------------------------===//
 
-ParseResult
-parseReductionClause(OpAsmParser &parser, Region &region,
-                     SmallVectorImpl<OpAsmParser::UnresolvedOperand> &operands,
-                     SmallVectorImpl<Type> &types, ArrayAttr &reductionSymbols,
-                     SmallVectorImpl<OpAsmParser::Argument> &privates) {
-  if (failed(parser.parseOptionalKeyword("reduction")))
-    return failure();
-
+ParseResult parseClauseWithRegionArgs(
+    OpAsmParser &parser, Region &region,
+    SmallVectorImpl<OpAsmParser::UnresolvedOperand> &operands,
+    SmallVectorImpl<Type> &types, ArrayAttr &symbols,
+    SmallVectorImpl<OpAsmParser::Argument> &regionPrivateArgs) {
   SmallVector<SymbolRefAttr> reductionVec;
+  unsigned regionArgOffset = regionPrivateArgs.size();
 
   if (failed(
           parser.parseCommaSeparatedList(OpAsmParser::Delimiter::Paren, [&]() {
             if (parser.parseAttribute(reductionVec.emplace_back()) ||
                 parser.parseOperand(operands.emplace_back()) ||
                 parser.parseArrow() ||
-                parser.parseArgument(privates.emplace_back()) ||
+                parser.parseArgument(regionPrivateArgs.emplace_back()) ||
                 parser.parseColonType(types.emplace_back()))
               return failure();
             return success();
           })))
     return failure();
 
-  for (auto [prv, type] : llvm::zip_equal(privates, types)) {
+  auto *argsBegin = regionPrivateArgs.begin();
+  MutableArrayRef argsSubrange(argsBegin + regionArgOffset,
+                               argsBegin + regionArgOffset + types.size());
+  for (auto [prv, type] : llvm::zip_equal(argsSubrange, types)) {
     prv.type = type;
   }
   SmallVector<Attribute> reductions(reductionVec.begin(), reductionVec.end());
-  reductionSymbols = ArrayAttr::get(parser.getContext(), reductions);
+  symbols = ArrayAttr::get(parser.getContext(), reductions);
   return success();
 }
 
-static void printReductionClause(OpAsmPrinter &p, Operation *op,
-                                 ValueRange reductionArgs, ValueRange operands,
-                                 TypeRange types, ArrayAttr reductionSymbols) {
-  p << "reduction(";
+static void printClauseWithRegionArgs(OpAsmPrinter &p, Operation *op,
+                                      ValueRange argsSubrange,
+                                      StringRef clauseName, ValueRange operands,
+                                      TypeRange types, ArrayAttr symbols) {
+  p << clauseName << "(";
   llvm::interleaveComma(
-      llvm::zip_equal(reductionSymbols, operands, reductionArgs, types), p,
-      [&p](auto t) {
+      llvm::zip_equal(symbols, operands, argsSubrange, types), p, [&p](auto t) {
         auto [sym, op, arg, type] = t;
         p << sym << " " << op << " -> " << arg << " : " << type;
       });
   p << ") ";
 }
 
-static ParseResult
-parseParallelRegion(OpAsmParser &parser, Region &region,
-                    SmallVectorImpl<OpAsmParser::UnresolvedOperand> &operands,
-                    SmallVectorImpl<Type> &types, ArrayAttr &reductionSymbols) {
+static ParseResult parseParallelRegion(
+    OpAsmParser &parser, Region &region,
+    SmallVectorImpl<OpAsmParser::UnresolvedOperand> &reductionVarOperands,
+    SmallVectorImpl<Type> &reductionVarTypes, ArrayAttr &reductionSymbols,
+    llvm::SmallVectorImpl<OpAsmParser::UnresolvedOperand> &privateVarOperands,
+    llvm::SmallVectorImpl<Type> &privateVarsTypes,
+    ArrayAttr &privatizerSymbols) {
+  llvm::SmallVector<OpAsmParser::Argument> regionPrivateArgs;
 
-  llvm::SmallVector<OpAsmParser::Argument> privates;
-  if (succeeded(parseReductionClause(parser, region, operands, types,
-                                     reductionSymbols, privates)))
-    return parser.parseRegion(region, privates);
+  if (succeeded(parser.parseOptionalKeyword("reduction"))) {
+    if (failed(parseClauseWithRegionArgs(parser, region, reductionVarOperands,
+                                         reductionVarTypes, reductionSymbols,
+                                         regionPrivateArgs)))
+      return failure();
+  }
 
-  return parser.parseRegion(region);
+  if (succeeded(parser.parseOptionalKeyword("private"))) {
+    if (failed(parseClauseWithRegionArgs(parser, region, privateVarOperands,
+                                         privateVarsTypes, privatizerSymbols,
+                                         regionPrivateArgs)))
+      return failure();
+  }
+
+  return parser.parseRegion(region, regionPrivateArgs);
 }
 
 static void printParallelRegion(OpAsmPrinter &p, Operation *op, Region &region,
-                                ValueRange operands, TypeRange types,
-                                ArrayAttr reductionSymbols) {
-  if (reductionSymbols)
-    printReductionClause(p, op, region.front().getArguments(), operands, types,
-                         reductionSymbols);
+                                ValueRange reductionVarOperands,
+                                TypeRange reductionVarTypes,
+                                ArrayAttr reductionSymbols,
+                                ValueRange privateVarOperands,
+                                TypeRange privateVarTypes,
+                                ArrayAttr privatizerSymbols) {
+  if (reductionSymbols) {
+    auto *argsBegin = region.front().getArguments().begin();
+    MutableArrayRef argsSubrange(argsBegin,
+                                 argsBegin + reductionVarTypes.size());
+    printClauseWithRegionArgs(p, op, argsSubrange, "reduction",
+                              reductionVarOperands, reductionVarTypes,
+                              reductionSymbols);
+  }
+
+  if (privatizerSymbols) {
+    auto *argsBegin = region.front().getArguments().begin();
+    MutableArrayRef argsSubrange(argsBegin + reductionVarOperands.size(),
+                                 argsBegin + reductionVarOperands.size() +
+                                     privateVarTypes.size());
+    printClauseWithRegionArgs(p, op, argsSubrange, "private",
+                              privateVarOperands, privateVarTypes,
+                              privatizerSymbols);
+  }
+
   p.printRegion(region, /*printEntryBlockArgs=*/false);
 }
 
@@ -1008,9 +1042,8 @@ static LogicalResult verifyMapClause(Operation *op, OperandRange mapOperands) {
         }
 
         if (always || close || implicit) {
-          return emitError(
-              op->getLoc(),
-              "present, mapper and iterator map type modifiers are permitted");
+          return emitError(op->getLoc(), "present, mapper and iterator map "
+                                         "type modifiers are permitted");
         }
 
         to ? updateToVars.insert(updateVar) : updateFromVars.insert(updateVar);
@@ -1070,14 +1103,63 @@ void ParallelOp::build(OpBuilder &builder, OperationState &state,
       builder, state, /*if_expr_var=*/nullptr, /*num_threads_var=*/nullptr,
       /*allocate_vars=*/ValueRange(), /*allocators_vars=*/ValueRange(),
       /*reduction_vars=*/ValueRange(), /*reductions=*/nullptr,
-      /*proc_bind_val=*/nullptr);
+      /*proc_bind_val=*/nullptr, /*private_vars=*/ValueRange(),
+      /*privatizers=*/nullptr);
   state.addAttributes(attributes);
 }
 
+static LogicalResult verifyPrivateVarList(ParallelOp &op) {
+  auto privateVars = op.getPrivateVars();
+  auto privatizers = op.getPrivatizersAttr();
+
+  if (privateVars.empty() && (privatizers == nullptr || privatizers.empty()))
+    return success();
+
+  auto numPrivateVars = privateVars.size();
+  auto numPrivatizers = (privatizers == nullptr) ? 0 : privatizers.size();
+
+  if (numPrivateVars != numPrivatizers)
+    return op.emitError() << "inconsistent number of private variables and "
+                             "privatizer op symbols, private vars: "
+                          << numPrivateVars
+                          << " vs. privatizer op symbols: " << numPrivatizers;
+
+  for (auto privateVarInfo : llvm::zip(privateVars, privatizers)) {
+    Type varType = std::get<0>(privateVarInfo).getType();
+    SymbolRefAttr privatizerSym =
+        std::get<1>(privateVarInfo).cast<SymbolRefAttr>();
+    PrivateClauseOp privatizerOp =
+        SymbolTable::lookupNearestSymbolFrom<PrivateClauseOp>(op,
+                                                              privatizerSym);
+
+    if (privatizerOp == nullptr)
+      return op.emitError() << "failed to lookup privatizer op with symbol: '"
+                            << privatizerSym << "'";
+
+    Type privatizerType = privatizerOp.getType();
+
+    if (varType != privatizerType)
+      return op.emitError()
+             << "type mismatch between a "
+             << (privatizerOp.getDataSharingType() ==
+                         DataSharingClauseType::Private
+                     ? "private"
+                     : "firstprivate")
+             << " variable and its privatizer op, var type: " << varType
+             << " vs. privatizer op type: " << privatizerType;
+  }
+
+  return success();
+}
+
 LogicalResult ParallelOp::verify() {
   if (getAllocateVars().size() != getAllocatorsVars().size())
     return emitError(
         "expected equal sizes for allocate and allocator variables");
+
+  if (failed(verifyPrivateVarList(*this)))
+    return failure();
+
   return verifyReductionVarList(*this, getReductions(), getReductionVars());
 }
 
@@ -1111,8 +1193,8 @@ LogicalResult TeamsOp::verify() {
       return emitError("expected num_teams upper bound to be defined if the "
                        "lower bound is defined");
     if (numTeamsLowerBound.getType() != numTeamsUpperBound.getType())
-      return emitError(
-          "expected num_teams upper bound and lower bound to be the same type");
+      return emitError("expected num_teams upper bound and lower bound to be "
+                       "the same type");
   }
 
   // Check for allocate clause restrictions
@@ -1174,9 +1256,10 @@ parseWsLoop(OpAsmParser &parser, Region &region,
 
   // Parse an optional reduction clause
   llvm::SmallVector<OpAsmParser::Argument> privates;
-  bool hasReduction = succeeded(
-      parseReductionClause(parser, region, reductionOperands, reductionTypes,
-                           reductionSymbols, privates));
+  bool hasReduction = succeeded(parser.parseOptionalKeyword("reduction")) &&
+                      succeeded(parseClauseWithRegionArgs(
+                          parser, region, reductionOperands, reductionTypes,
+                          reductionSymbols, privates));
 
   if (parser.parseKeyword("for"))
     return failure();
@@ -1223,8 +1306,9 @@ void printWsLoop(OpAsmPrinter &p, Operation *op, Region &region,
   if (reductionSymbols) {
     auto reductionArgs =
         region.front().getArguments().drop_front(loopVarTypes.size());
-    printReductionClause(p, op, reductionArgs, reductionOperands,
-                         reductionTypes, reductionSymbols);
+    printClauseWithRegionArgs(p, op, reductionArgs, "reduction",
+                              reductionOperands, reductionTypes,
+                              reductionSymbols);
   }
 
   p << " for ";
@@ -1464,9 +1548,9 @@ LogicalResult TaskLoopOp::verify() {
   }
 
   if (getGrainSize() && getNumTasks()) {
-    return emitError(
-        "the grainsize clause and num_tasks clause are mutually exclusive and "
-        "may not appear on the same taskloop directive");
+    return emitError("the grainsize clause and num_tasks clause are mutually "
+                     "exclusive and "
+                     "may not appear on the same taskloop directive");
   }
   return success();
 }
@@ -1535,7 +1619,8 @@ LogicalResult OrderedOp::verify() {
 }
 
 LogicalResult OrderedRegionOp::verify() {
-  // TODO: The code generation for ordered simd directive is not supported yet.
+  // TODO: The code generation for ordered simd directive is not supported
+  // yet.
   if (getSimd())
     return failure();
 
@@ -1753,6 +1838,15 @@ LogicalResult DataBoundsOp::verify() {
   return success();
 }
 
+void PrivateClauseOp::build(OpBuilder &odsBuilder, OperationState &odsState,
+                            TypeRange /*result_types*/, StringAttr symName,
+                            TypeAttr type) {
+  PrivateClauseOp::build(
+      odsBuilder, odsState, symName, type,
+      DataSharingClauseTypeAttr::get(odsBuilder.getContext(),
+                                     DataSharingClauseType::Private));
+}
+
 LogicalResult PrivateClauseOp::verify() {
   Type symType = getType();
 
@@ -1785,8 +1879,7 @@ LogicalResult PrivateClauseOp::verify() {
 
     if (region.getNumArguments() != expectedNumArgs)
       return mlir::emitError(region.getLoc())
-             << "`" << regionName << "`: "
-             << "expected " << expectedNumArgs
+             << "`" << regionName << "`: " << "expected " << expectedNumArgs
              << " region arguments, got: " << region.getNumArguments();
 
     for (Block &block : region) {
diff --git a/mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp b/mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
index 78a2ad76a1e3b8..6b59dc7377fc74 100644
--- a/mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
+++ b/mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
@@ -1000,6 +1000,26 @@ convertOmpWsLoop(Operation &opInst, llvm::IRBuilderBase &builder,
   return success();
 }
 
+/// Replace the region arguments of the parallel op (which correspond to private
+/// variables) with the actual private varibles t...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/81715


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